Collin County — texaspropertytaxappeal.com

Protest Deadline: May 15, 2026 (40 days left)

620 TWIN KNOLL DR

This property may be over-assessed.

Estimated annual tax savings
$2,192
Based on assessment gap vs. neighborhood median
Your $/sqft
$237
Neighborhood median
$165
Appraised value
$336,854
% above median
43.7%
Heated area
1,421 sqft
Year built
2005

Comparable properties in your neighborhood

These homes are similar to yours and assessed lower per square foot.

Address Sqft Year Market Value $/Sqft Diff
608 CRYSTAL FALLS DR 1,421 2005 $307,000 $216 -$21
608 TWIN KNOLL DR 1,421 2004 $324,803 $229 -$8
425 TWIN KNOLL DR 1,421 2004 $303,000 $213
3505 ROLLING HILLS DR 1,421 2004 $305,699 $215
601 TERRACE VIEW DR 1,421 2004 $308,305 $217
512 TERRACE VIEW DR 1,454 2004 $306,550 $211

🔒 4 more comparable properties available in your evidence packet

How we calculated this

We compared your property's assessed value per square foot ($237/sqft) against the median for your neighborhood ($165/sqft). Your property is assessed 43.7% higher than typical homes nearby.

If the appraisal district adjusted your value to the neighborhood median, you could save approximately $2,192 per year in property taxes based on the Collin County effective tax rate.

We identified the 6 most comparable homes — matched on square footage, age, quality, and location — all assessed at lower $/sqft values.

What you'll receive

📋

Filing Guide

Your exact deadline, required forms, and step-by-step Collin County filing process

📊

Evidence Packet

Full comparable sales analysis with 6 properties, assessment discrepancy calculation, and maps

✉️

Cover Letter

Pre-written appeal letter with hearing talking points, ready to sign and submit

This decision compounds

Year 1
$2,192
Year 2
$4,384
Year 3
$6,576

That’s a 134× return on $49

Get your protest packet

One-time fee · No recurring charges · You keep 100% of your savings

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Protest deadline: May 15, 2026 (40 days left)